Hydrazone compounds represented by general formula (1) or salts thereof and novel agricultural chemicals (in particular, insecticides and miticides) containing these compounds as the active ingredient formulae (1), G-1, G-2, G-3, wherein A represents -CH2-, -CH2CH2-, -OCH2-, etc.; B represents a single bond, oxygen, sulfur, etc.; G represents a group represented by formula G-1, G-2 or G-3; Q and Q independently represent each hydrogen, C1-12 alkyl, C1-12 haloalkyl, etc.; W , W and W independently represent each oxygen, sulfur, etc.; X represents hydrogen, halogeno, cyano, etc.; R , R , R , R and R independently represent each hydrogen, C1-6 alkyl, C1-6 haloalkyl, etc.; R and R independently represent each C1-6 alkyl, C1-6 haloalkyl, etc.; and m is an integer of from 1 to 4.